OpenWRT TP-Link Archer C7 back to original firmware (AC1750)

So if you are on OpenWRT firmware and you will go back the original Firmware from the manufacturer you need to modify the original firmware because the original firmware you can’t flash with OpenORT running.

So go and download the original firmware

Use dd and cut the first 131584 byte, or in HEX 0x20200

ddif=original_firmware.binof=openwrt_flashable.binskip=257bs=512

If you have serial access you can flash this image at the U-Boot prompt and be able to use a tftp server for the flash process

setenvipaddr192.168.1.1

setenvserverip192.168.1.4

tftpboot0x80060000openwrt_flashable.bin

erase0x9f020000 +0x7c0000

cp.b0x800600000x9f0200000x7c0000

boot.m0x9f020000

If you don’t be able to flash via the serial console you may be flash with normal OpenWRT flashing method the converted firmware

If everything is done, you should reboot the router and you can login via the original IP: 192.168.0.1